<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body>
<form action="submit.do" method="post">
			<input name="a" />
			<input name="a" />
			<input name="a" />
			<input name="a" />
			<button type="submit" >提交</button>
</form>
</body>
</html>